Home / 340,903.59-470,450-187,947.21

Finding the Fourth Proportional to 340,903.59, 470,450 and 187,947.21

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Solution

The fourth proportional to 340,903.59, 470,450 and 187,947.21 is: 259,368.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,903.59 : 470,450 = 187,947.21 : x
  2. Step 2: Convert to fraction form
    340,903.59/470,450 = 187,947.21/x
  3. Step 3: Cross multiply
    340,903.59x = 470,450 × 187,947.21
  4. Step 4: Simplify right side
    340,903.59x = 88,419,762,592.25
  5. Step 5: Solve for x
    x = 88,419,762,592.25/340,903.59
  6. Step 6: Final answer
    x = 259,368.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.